BuildTask: print utilisation stats.

Author: kivikakk

src/main/scala/ee/hrzn/chryse/platform/ecp5/ECP5Platform.scala

@@ -59,7 +59,8 @@ trait ECP5Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
       val lpfPath = s"$buildDir/${platform.id}/$name.lpf"
       writePath(lpfPath, topPlatform.lpf.toString())
 
-      val textcfgPath = s"$buildDir/${platform.id}/$name.config"
+      val textcfgPath    = s"$buildDir/${platform.id}/$name.config"
+      val nextpnrLogPath = s"$buildDir/${platform.id}/$name.config.log"
       val textcfgCu = CompilationUnit(
         Some(jsonPath),
         Seq(lpfPath),
@@ -68,7 +69,7 @@ trait ECP5Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
           "nextpnr-ecp5",
           "-q",
           "--log",
-          s"$buildDir/${platform.id}/$name.tim",
+          nextpnrLogPath,
           "--json",
           jsonPath,
           "--lpf",
@@ -84,6 +85,8 @@ trait ECP5Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
       )
       runCu(CmdStepPNR, textcfgCu)
 
+      // TODO (ECP5): print statistics like ICE40Platform.
+
       val bitPath = s"$buildDir/${platform.id}/$name.bit"
       val svfPath = s"$buildDir/${platform.id}/$name.svf"
       val bitCu = CompilationUnit(

src/main/scala/ee/hrzn/chryse/platform/ice40/ICE40Platform.scala

@@ -57,7 +57,8 @@ trait ICE40Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
       val pcfPath = s"$buildDir/${platform.id}/$name.pcf"
       writePath(pcfPath, topPlatform.pcf.toString())
 
-      val ascPath = s"$buildDir/${platform.id}/$name.asc"
+      val ascPath        = s"$buildDir/${platform.id}/$name.asc"
+      val nextpnrLogPath = s"$buildDir/${platform.id}/$name.asc.log"
       val ascCu = CompilationUnit(
         Some(jsonPath),
         Seq(pcfPath),
@@ -66,7 +67,7 @@ trait ICE40Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
           "nextpnr-ice40",
           "-q",
           "--log",
-          s"$buildDir/${platform.id}/$name.tim",
+          nextpnrLogPath,
           "--json",
           jsonPath,
           "--pcf",
@@ -80,6 +81,15 @@ trait ICE40Platform { this: PlatformBoard[_ <: PlatformBoardResources] =>
       )
       runCu(CmdStepPNR, ascCu)
 
+      println()
+      println("Device utilisation:")
+      logFileBetween(
+        nextpnrLogPath,
+        raw"Info: Device utilisation:".r,
+        raw"Info: Placed .*".r,
+        Some("Info: "),
+      )
+
       val binPath = s"$buildDir/${platform.id}/$name.bin"
       val binCu = CompilationUnit(
         Some(ascPath),

src/main/scala/ee/hrzn/chryse/tasks/BaseTask.scala

@@ -130,6 +130,38 @@ trait BaseTask {
       .map(_.toString)
       .filter(_.endsWith(ext))
 
+  protected def logFileBetween(
+      path: String,
+      start: Regex,
+      end: Regex,
+      prefix: Option[String] = None,
+  ): Unit = {
+    var started = false
+    var ended   = false
+    val lines   = Files.lines(Paths.get(path)).iterator.asScala
+
+    while (!ended && lines.hasNext) {
+      val line = lines.next()
+      if (!started) {
+        started = start.matches(line)
+      } else if (end.matches(line)) {
+        ended = true
+      } else {
+        println(prefix match {
+          case Some(prefix) =>
+            if (
+              line.length >= prefix.length && line
+                .substring(0, prefix.length()) == prefix
+            )
+              line.substring(prefix.length())
+            else line
+          case None =>
+            line
+        })
+      }
+    }
+  }
+
   case class CompilationUnit(
       val primaryInPath: Option[String],
       val otherInPaths: Seq[String],

src/main/scala/ee/hrzn/chryse/tasks/BuildTask.scala

@@ -66,22 +66,21 @@ private[chryse] object BuildTask extends BaseTask {
          |write_json $jsonPath""".stripMargin,
     )
 
+    val yosysLogPath = s"$buildDir/${platform.id}/$name.json.log"
     val yosysCu = CompilationUnit(
       Some(verilogPath),
       Seq(yosysScriptPath),
       jsonPath,
-      Seq(
-        "yosys",
-        "-q",
-        "-g",
-        "-l",
-        s"$buildDir/${platform.id}/$name.rpt",
-        "-s",
-        yosysScriptPath,
-      ),
+      Seq("yosys", "-q", "-g", "-l", yosysLogPath, "-s", yosysScriptPath),
     )
     runCu(CmdStepSynthesise, yosysCu)
 
+    logFileBetween(
+      yosysLogPath,
+      raw"\d+\.\d+\. Printing statistics\.".r,
+      raw"\d+\.\d+\. .*".r,
+    )
+
     val binPath = platform.build(chryse, topPlatform.get, jsonPath)
 
     if (options.program) {